Impregnating piles.



H. G. IENNISON.

IMPREGNATING PILES.

APPLICATION FILED 1UNEI5, 1914.

1191141591 Patented 1u1y13, 1915.

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' HARRY e. JENNIsoN, or Tonnno, omo.

mPREeNAT-ING PILES.

l amasar.

Application led June 15,

T all 'whom 'it may concern.' 4

Be it known that I, HARRY G. JENNIsoN, a citizen of the United States, residing at Toledo,''Lucas county, Ohio, have invented new and useful Impregnating Piles, of which the following is a specification.

This. invention relates to treating of porous material by forcing substance intothe pores of said material.

This invention has utility when embodied for impregnation of wood, being especially adapted toy economic asepticizing of materials, aportion onlyzof which is-subject to severestweathering attacks as piles or posts extending into the ground or water.

Referring to the drawings: Figure 1 is aJ side elevation of an embodiment of the in' vention showing the vessel or vertical cylinder l'open ready to be charged; Fig. 2 is a side elevation with parts broken away of the cylinder closed and containing the piles to be impregnated; Fig. 3 is a side elevation of a pile having its butt only impregnated; and Fig. 4 is a side elevation of the pile with an intermediate portion only impregnated, as the region adjacent the ground orfwater line.

The vessel for effecting the impregnation may comprise the lower section 1 of a vertical cylinder, which for'convenience may be set below the working surface 2 or normal ground line. This lower chamber section 1 may have a line 3 to the bottom thereof. In the instance of impregnating an end of the porous material, as say the butt of a pile, the line 3 may be used for the charge of impregnating substance andremoval of such lmpregnating substance whether a salt solution or a liquid hydrocarbon. The porous material or lengths of piles 4 may be introduced into the lower chamber 1 by the whirly or derrick 5 and then the upper section 6 of the vertical cylinder may be taken by this same whirly 5 and placed onthe lower cylinder section 1 with the gasket 7 therebetween and bolts 8 then set up to make a pressure tight joint in this closed vessel. The impregnating solution may be introduced through the pipe 3 to a desired showing on the gage 9, which showing may take ito account the displacement of the impregnating substance or solution by the piles andthe amount which is to be driven specification of Lettersratent.

Patented July is, reis..

1914. seria1No.s45,o55. y

into the submerged portion of said piles. Application of air pressure through the line 10 may serve to bring the fluid pressure throughout the chamber 1, 6, up to the de` sired reading and the impregnated substance thereby driven into the piles to the extent indicated by the gage 9, such impregnating Vbeing only over the portion of the pile submerged in such impregnating solution or substance, although the entire pile is subjected to the pressure. The pressure may be run up by the fluid alone through the line 10 or there may be introduction of the impregnating solution through the line 3 against the pressure within the cylinder or chamber.

In either event the complete impregnationof the pile section is effected for the desired section. The impregnating solution is effectually confined, by the neutralizing or equalizing pressure in thel chamber, to be within the submerged region or the impregnating solution enveloped portion ofthe pile. The uniformity of presure throughout the chamber has such counterbalancing action that the impregnating solution level in the pile is approximately the level of the solution maintained in the chamber, for the equalization of the pressure inaintains this level within and without the piles.

When the desired charge lof-;'the'solution has been completed, which solution may be heated to increase its penetration, the pres- 'sure may be reduced even to theextent'of below atmosphere on the line 10, after the removal of the impregnating solution through the line 3. The upper cylinder sec.-

tion 6 may be then removed and the piles with their butts thoroughly and fully impregnated by the solution removed for a repetition of "this operation.

In some instances it may be desirable to effecta thorough penetration or impregnation with the resulting aseptic material and a less quantity used of the impregnating or asepticizing solution. To bring this about, before the ,impregnating solution is introduced into the closed chamber 1, 6, the piles or porous material in said chamber maybe subjected to gas or air pressure to open the cells thereof and this pressure followed up by introduction of the impregnating substance forced in under increased pressure either by pumping it into the vessel or by pumping it into the vessel and supplying additional pressure by air or gas.

Upon the gage or the measured pumping of the impregnating solution showing the required impregnation, the impregnating substance may be removed and the pressure reduced say even to below atmosphere when the imprisoned initial air or compressed iuid will expand and drive out the surplus impregnating substance, still leaving the pore chambers coated therewith'. This latter handling will consume a vminimum of impregnating substance and with a great saving in the impregnating'substance in the butt treatment only, there is this further saving here in the preliminary air pressure treatment. Accordingly there is produced a pile treated to withstand weather or moisture ravages at a minimum of treating expense. In the event still further refinement is desired the line 3 may charge the lower portion of the vessel with some substance or liquid say salt water to come up on the piles a distance somewhat below the ground line or water line, which height may be determined by the gage 11, then the impregnating solution may be introduced through the line 12. Such impregnating solution y treated portions 15 should be of a specific gravity less than that of the lower submerged solution or salt water introduced through line 3. The gages 9, 11, will permit such maintenance of the levels of the lower enveloping solution or salt water and the impregnating enveloping solution as may be desired to determine the ,volume of the impregnating solution which may be forced into the piles. When the impregnation occurs, either with the air pressure treatment or direct forcing of the solution into the substance, `the impregnating solution may be drawn ofi'l by the line 13 when the pressure may be reduced to atmospheric pressure or below and there is produced the uniform sectional impregnation of the porous substance at a minimum of expense.

When there is but the single enveloping substance which is to be used for impregnating, the piles 4 may have the portion or butts 14 treated, which in use extend into the ground or water and above the water or ground line attacks and the upper unthereof are away from such attacks. v

When there is sectional or intermediate impregnation this may be effected as a most economical mode of treatment, having exceptional value in producing a pile having the butt 16 not treated with the impregnating solution, the intermediate portion 17 treated, and the upper portion 15 untreated. The butt section 16 in such a pile maybe disposed always to be below the water line, or below the line where the moisture or frost 1. `The process of impregnating articles of porous materials including the disposltion of an impregnating substance about only a portion of the article in a closed vessel and with the application of pressure within said vessel about the submerged and unsubmerged portion of the article to confine to the submerged portion of the article `the impregnating substance and force said impregnating substance into the article throughout the impregnating substance submerged portion only of the article.

2. The process Aof impregnating articles of porous material including the disposition of the articles' within a vessel, driving an' expansible fluid thereinto, subjecting a portion of the article only to an impregnatingA fluid under pressure, simultaneously equalizing the pressure in and about the other portion ofthe material adjacent the portion of the material subjected to the impregnating fluid under pressure to neutralize the impregnating fluid pressure` and then reducing the pressure for action of the expansible fluid to drive out a portion of the impregnating iuid.

3. The process of impregnating articles of porous material including the disposition of -an impregnating substance to envelop a portion only of an article, and the application of pressure about the entire article to force the impregnating substance directly into the impregnating substance enveloped Y portion only of the article. p

4. The process of impregnating wood piles including the disposition of an intermediate portion of the pile only/in an impregnating liquid, and the forcing of said liquid directly into such intermediate porv tlon only by applying pressure to the pile in the vessel for less than the full length of the piles, and the establishment `of impregnating solution penetration pressure throughout the vessel and the extent of the piles for niemeer, t Q

`1.0 ment of gas pressure throughout the vessel above the solution to drive the impregnatl 111g solution into the submerged portion of the piles. v

In witness whereof I hereunto set my hand. in the presence of two Witnesses.

HARRY e. JENmsoN.

Witnesses:

W. E. WRIGHT, M. E.MURBA0H. 

